package com.spring.xiatian.aspect;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 *
 *  Aop的切面  可以用于一些特殊的场景 这里简单示范下 在请求的前后 打印日志
 *
 * Created by Created by xiaoxia on 2017/11/1 0001 8:44.
 */
@Aspect
@Component
public class HttpAspect {

    private final static Logger logger = LoggerFactory.getLogger(HttpAspect.class);

    @Pointcut("execution(public * com.spring.xiatian.user.controller.api.UserController.*(..))")
    public void log(){
        logger.info("开始 aop......");
    }

    @Before("log()")
    public void before(JoinPoint joinPoint){
        ServletRequestAttributes requestAttributes = (ServletRequestAttributes)RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = requestAttributes.getRequest();
        // url
        logger.info("url={}",request.getRequestURL());
        // method
        logger.info("method={}", request.getMethod());
        // ip
        logger.info("ip={}",request.getRemoteAddr());
        // 类方法
        logger.info("class_method={}",joinPoint.getSignature().getDeclaringTypeName()+"."+joinPoint.getSignature().getName());

        // 参数
        logger.info("param={}",joinPoint.getArgs());
    }

    @After("log()")
    public void after(){

    }

    /**
     * 再 controller调用结束之后的返回结果
     * @param object result
     */
    @AfterReturning(returning = "object",pointcut = "log()")
    public void afterReturn(Object object){
        logger.info("response={}",object.toString());
    }


}
